Neo-Mercazole brand names worldwide, and other names for carbimazole and methimazole
Neo-Mercazole by country (UK, Ireland, France, Australia, New Zealand, India, Pakistan, Egypt, Bangladesh), its generic name, other carbimazole brands, methimazole names such as Tapazole, Thyrozol and Mercazole, and common misspellings.
Neo-Mercazole is one brand of one medicine, carbimazole, but you will meet it under several spellings, alongside generic tablets, and next to methimazole products with confusingly similar names. This page sorts them out, country by country, from regulator records and pharmacy listings.
Key points
- Generic name of Neo-Mercazole: carbimazole.
- Same medicine, other carbimazole names: plain “Carbimazole” tablets, Reduzol (UK), Carbizol (Bangladesh).
- Different medicine: methimazole, also called thiamazole: Tapazole (US, discontinued), Thyrozol (Germany), Mercazole (Japan).
- Watch the “Neo”: Mercazole in Japan is thiamazole, not carbimazole.
Neo-Mercazole by country
| Country | Name on the pack | Strengths found | Company named |
|---|---|---|---|
| Ireland | NeoMercazole | 5 mg | Amdipharm Limited (licence holder) |
| France | Néo-Mercazole | 5 mg, 20 mg | Amdipharm |
| Australia | Neo-Mercazole | 5 mg | listed by the national medicine finder |
| New Zealand | Neo-Mercazole | 5 mg | AFT Pharmaceuticals (sponsor) |
| India | Neo Mercazole | 5 mg, 10 mg | Abbott |
| Pakistan | Neo-Mercazole | 5 mg | Ray Pharma |
| Egypt | Neo Mercazole | 5 mg | Abbott (listed as a special import by some pharmacies) |
| Bangladesh | Neo-Mercazole | 5 mg | sold alongside local carbimazole brands |
| Malaysia | NeoMercazole | listed in MIMS Malaysia |
The UK licenses carbimazole mostly as generic tablets in 5, 10, 15 and 20 mg, with a 2.5 mg/ml oral solution. The company names come from each country’s regulator record or pharmacy listing and can change as licences are sold; check your own pack.
Strength questions
People often search for strengths such as 15, 20, 30 or 50 mg. Neo-Mercazole itself is mostly 5 mg (and 10 mg in India, 20 mg in France). Generic carbimazole adds 10, 15 and 20 mg in the UK. There is no 50 mg carbimazole tablet; 50 mg is the strength of propylthiouracil (PTU), a different antithyroid drug. A larger daily dose is made up from several tablets.
Other names for carbimazole
- Carbimazole is the international non-proprietary name and the name on most UK, Irish and Australian generic packs.
- Reduzol 5 mg is a UK carbimazole brand (Morningside Healthcare).
- Carbizol is a carbimazole brand from Square Pharmaceuticals in Bangladesh, one of several local carbimazole brands there.
All of these work the same way as Neo-Mercazole, at the same doses.
Methimazole names: related, but not the same medicine
| Name | Where | What it is |
|---|---|---|
| Methimazole | US and international | the active drug carbimazole turns into |
| Thiamazole | Europe and Japan | another name for methimazole |
| Tapazole | US (original brand) | methimazole 5 and 10 mg; FDA lists it as discontinued, not for safety reasons |
| Thyrozol, Thiamazol | Germany, Austria | thiamazole 5, 10 and 20 mg |
| Mercazole | Japan | thiamazole, marketed by Aska Pharmaceutical since 2015 (previously Chugai) |
| Felimazole, Thyronorm, Felanorm | veterinary | methimazole for cats (see cats) |
Spellings people use
Searches reaching this site include neomercazole, neo mercazole, neo-mercazole, neomercazol, neomarcazole, neomecazole, neomercazole carbimazole, neocarbimazole and the Arabic نيوميركازول. They all refer to the same carbimazole brand. “Neo carbimazole” is not a separate drug.
Where to buy
Neo-Mercazole and generic carbimazole are listed online by PockDose (Hong Kong), Yasabai (Thailand) and VGR Australia, so order the strength on your prescription. More by country on where to buy.
Sources
Product records and listings checked 15 October 2026.
- NeoMercazole 5 mg tablets, summary of product characteristics (Ireland) — Health Products Regulatory Authority (Ireland)
- NEO-MERCAZOLE 20 mg, comprimé — Base de données publique des médicaments (France)
- Neo-Mercazole tablets — Australian Commission on Safety and Quality in Health Care
- Neo-Mercazole New Zealand data sheet — Medsafe (New Zealand)
- Neo Mercazole 5 Tablet (manufacturer Abbott Healthcare) — Practo (India)
- Neo Mercazole (5 mg) 100 tablets, manufacturer Ray Pharma — Healthwire (Pakistan)
- Neo Mercazole 5 mg 100 tablets (Abbott) — Gardenia Pharmacies (Egypt)
- Neo-Mercazole 5 tablet (Bangladesh) — ePharma (Bangladesh)
- Carbimazole brand names with prices in Bangladesh — MedEx (Bangladesh)
- NeoMercazole drug information (Malaysia) — MIMS Malaysia
- Carbimazole 5mg Tablets / Reduzol 5mg Tablets, SmPC — emc (UK)
- Thyrozol 5/10/20 mg Filmtabletten, Fachinformation — Fachinfo-Service (Germany)
- Transfer of marketing rights for Mercazole and Propacil from Chugai to Aska (2015) — Fierce Pharma
- Drugs@FDA: Tapazole (NDA 007517), marketing status — US Food and Drug Administration